CS43131 datasheet(21/156 Pages) CIRRUS

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DS1155F1

CS43131

3 Characteristics and Specifications

Octuple-Speed Mode 1

Passband 2

to –0.01-dB corner

to –3-dB corner

—

0.0299

0.263

Passband droop 10 Hz to 20 kHz

—

0.04

Group delay

—

17/Fs

—

1. Filter response is by design.

2. Response is clock-dependent and scales with Fs.

3. 8.5 dB for 32-kHz sample rate.

4. 0.454 Fs for 32-kHz sample rate.

5. Filter ripple specification is invalid with deemphasis enabled.

6. For Single-Speed Mode, the measurement bandwidth is from stopband to 3 Fs.

For Double-Speed Mode, the measurement bandwidth is from stopband to 3 Fs.

For Quad-Speed Mode, the measurement bandwidth is from stopband to 1.34 Fs.

7. 39/Fs for 32-kHz sample rate.

8. 5.9/Fs for 32-kHz sample rate.

9. Deemphasis is available only in 44.1 kHz.

10. 6.5 dB for 32-kHz sample rate.

11. 34/Fs for 32-kHz sample rate.

12. 5.2/Fs for 32-kHz sample rate.

13. 3.9 dB for 32-kHz sample rate (passband droop 10 Hz to 15 kHz).

Table 3-10. Combined DAC Digital, On-Chip Analog and HPOUTx Filter Characteristics (Wideband Flatness

Mode)

Test conditions (unless specified otherwise): The filter characteristics have been normalized to the sample rate (Fs) and can be referenced to the desired

sample rate by multiplying the given characteristic by Fs. Wideband Flatness Mode refers to Fs = 192 kHz sample rates. PCM_WBF_EN = 1. MCLK_

INT is an integer multiple of Fs; HPF disabled; no DC offset applied; group delay does not include serial port delay.

Parameter

Minimum Typical Maximum Units

Wideband Flatness Mode 1

1. Filter response is by design and may require calibration.

Passband 2

2. Response is clock-dependent and scales with Fs.

to –0.003-dB corner

to –3-dB corner

attenuation @ Fs/2

—

0.417

0.46

—

Passband ripple 10 Hz to –0.003-dB corner

–0.003

—

0.003

Stopband

0.583

—

Stopband attenuation 3

3. The measurement bandwidth is from stopband to 1.34 Fs.

—

Group delay

—

20.7/Fs

—

Table 3-11. DAC High-Pass Filter (HPF) Characteristics

Test conditions (unless specified otherwise): Gains are all set to 0 dB; TA = +25°C.

Parameter 1

1.Response scales with Fs in PCM Mode. Specifications are normalized to Fs and are denormalized by multiplying by Fs. For DSD Mode, Fs is 44.1 kHz.

Minimum

Typical

Maximum

Units

Passband 2

2.For PCM Single-Speed Mode, N = 1.

For PCM Double-Speed Mode, N = 2.

For PCM Quad-Speed Mode, N = 4.

For PCM Octuple-Speed Mode, N = 8.

For DSD 64 x Fs Mode, N = 1.

For DSD 128 x Fs Mode, N = 1.

–0.05-dB corner

–3.0-dB corner

—

0.195 x 10-3/N

19.5 x 10-6/N

—

Passband ripple (0.417x10-3/N Fs to 0.417/N Fs; normalized to 0.417/N Fs) 2

—

0.01

Phase deviation @ 0.453x10-3/N Fs 2

—2.45

—

Filter settling time 3

3.Required time for the magnitude of the DC component present at the output of the HPF to reach 5% of the applied DC signal.

—

24500

× N / Fs 2

—s

Table 3-9. Combined DAC Digital, On-Chip Analog and HPOUTx Filter Characteristics (Cont.)

Test conditions (unless specified otherwise): The filter characteristics have been normalized to the sample rate (Fs) and can be referenced to the desired

sample rate by multiplying the given characteristic by Fs. Single-Speed Mode refers to 32-, 44.1-, and 48-kHz sample rates. Double-Speed Mode refers

to 88.2- and 96-kHz sample rates. Quad-Speed Mode refers to 176.4- and 192-kHz sample rates. Octuple-Speed Mode refers to 352.8- and 384-kHz

sample rates. MCLK_INT is an integer multiple of Fs; HPF disabled; no DC offset applied; group delay does not include serial port delay.

Parameter

Minimum Typical Maximum Units

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